Peripheral Nerve Injury: Mechanism, Classification, and Treatment
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Questions and Answers

What is the most common mechanism of peripheral nerve injury?

  • Compression/crush (correct)
  • Laceration
  • Penetrating injury
  • Stretching injury

    • What diagnostic test is commonly used for peripheral nerve injuries to assess nerve conduction velocity?

  • CT scan
  • X-ray
  • MRI
  • NCS (nerve conduction studies) (correct)

    • Which treatment option involves observing the patient and performing sequential EMG before considering surgical intervention?

  • Observation with sequential EMG (correct)
  • Tendon transfer
  • Direct muscular neurotization
  • Nerve grafting

    • What is the purpose of the MCS Score in the context of peripheral nerve injuries?

    <p>To assess muscular strength</p> Signup and view all the answers

    Which type of peripheral nerve injury presents with numbness and proprioception issues?

    <p>Neurapraxia</p> Signup and view all the answers

    What type of injury results in no muscle wasting but complete motor, sensory, and sympathetic function loss?

    <p>Axonotmesis</p> Signup and view all the answers

    Which diagnostic test is commonly used for peripheral nerve injuries to assess muscle response to nerve stimulation?

    <p>EMG (electromyography)</p> Signup and view all the answers

    What is the primary symptom of neurapraxia?

    <p>Numbness and proprioception issues</p> Signup and view all the answers

    Which treatment option involves transferring a healthy tendon to restore function in a damaged tendon?

    <p>Tendon transfer</p> Signup and view all the answers

    Neurapraxia presents with muscle weakness and numbness.

    <p>False</p> Signup and view all the answers

    Axonotmesis results in complete loss of motor, sensory, and sympathetic function.

    <p>False</p> Signup and view all the answers

    Neurotmesis is characterized by anesthesia (no pain) and muscle wasting.

    <p>True</p> Signup and view all the answers

    NCS is commonly used for diagnosis of peripheral nerve injuries but not for treatment monitoring.

    <p>False</p> Signup and view all the answers

    Operative treatment options for peripheral nerve injuries include nerve grafting and sensory examination.

    <p>False</p> Signup and view all the answers

    The MCS Score is used to assess the patient's level of consciousness in the context of peripheral nerve injuries.

    <p>False</p> Signup and view all the answers

    Compression/crush is a mechanism of injury for peripheral nerve injuries.

    <p>True</p> Signup and view all the answers

    Observation with sequential EMG is a nonoperative treatment option for peripheral nerve injuries.

    <p>True</p> Signup and view all the answers

    Sensory exam is scored using the MCS Score in the context of peripheral nerve injuries.

    <p>False</p> Signup and view all the answers

    Direct muscular neurotization involves transferring healthy tendons to restore function in damaged tendons.

    <p>False</p> Signup and view all the answers

    The primary symptom of neurapraxia is muscle wasting.

    <p>False</p> Signup and view all the answers

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